package com.apollow.oschina.ui;

import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.Vibrator;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.apollow.oschina.R;

/**
 * Created by Dragon on 2017/1/19.
 */
public class ShakeActivity extends AppCompatActivity {
    private SensorManager sensorManager;
    private Vibrator vibrator;

    private static final String TAG = "ShakeActivity";
    private static final int SENSOR_SHAKE = 10;
    private TextView mTvTitle;
    private LinearLayout mLlBack;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_shake);
        initView();
        sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
        vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
    }

    private void initView() {
        mTvTitle = (TextView) findViewById(R.id.tv_title);
        mLlBack = (LinearLayout) findViewById(R.id.ll_back);
        mTvTitle.setText("摇一摇");
        mLlBack.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
    }

    @Override
    protected void onResume() {
        super.onResume();
        if (sensorManager != null) {// 注册监听器
            sensorManager.registerListener(sensorEventListener, sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL);
            // 第一个参数是Listener，第二个参数是所得传感器类型，第三个参数值获取传感器信息的频率
        }
    }

    @Override
    protected void onPause() {
        super.onPause();
        if (sensorManager != null) {// 取消监听器
            sensorManager.unregisterListener(sensorEventListener);
        }
    }

    /**
     * 重力感应监听
     */
    private SensorEventListener sensorEventListener = new SensorEventListener() {

        @Override
        public void onSensorChanged(SensorEvent event) {
            // 传感器信息改变时执行该方法
            float[] values = event.values;
            float x = values[0]; // x轴方向的重力加速度，向右为正
            float y = values[1]; // y轴方向的重力加速度，向前为正
            float z = values[2]; // z轴方向的重力加速度，向上为正
            Log.i(TAG, "x轴方向的重力加速度" + x + "；y轴方向的重力加速度" + y + "；z轴方向的重力加速度" + z);
            // 一般在这三个方向的重力加速度达到40就达到了摇晃手机的状态。
            int medumValue = 19;// 三星 i9250怎么晃都不会超过20，没办法，只设置19了
            if (Math.abs(x) > medumValue || Math.abs(y) > medumValue || Math.abs(z) > medumValue) {
                vibrator.vibrate(200);
                Message msg = new Message();
                msg.what = SENSOR_SHAKE;
                handler.sendMessage(msg);
            }
        }

        @Override
        public void onAccuracyChanged(Sensor sensor, int accuracy) {

        }
    };

    /**
     * 动作执行
     */
    Handler handler = new Handler() {

        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            switch (msg.what) {
                case SENSOR_SHAKE:
                    Toast.makeText(ShakeActivity.this, "检测到摇晃，执行操作！", Toast.LENGTH_SHORT).show();
                    Log.i(TAG, "检测到摇晃，执行操作！");
                    break;
            }
        }

    };
}
